g A spaceship carrying a light clock moves at a speed of 0.90c relative to an observer on Earth. If the clock on the ship advances by 2.00 s as measured by the space travelers aboard the ship, how long did that advance take as measured by the observer on Earth

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

What is a good example of instantaneous speed

The strong nuclear force acts over a small distance than the electrostatic force. true or false